Precipitation in frozen water samples

Series: Internal report / Water Quality Centre ; IR81/22.Publisher: 1981Description: 15 p.Subject(s): SAMPLES | PRECIPITATION | NEW ZEALAND | WATER QUALITYHoldings: Index record, see series title Summary: The occurence of a colloidal precipitate in thawed water samples from the Rotorua region which had been frozen (for preservation for chemical analyses) was shown to be an amorphous silica using XRF, XRD and microscopical analyses. The turbidity effect on DRP colourimetric analysis was not significant if the sample was left unshaken prior to measurement.

The occurence of a colloidal precipitate in thawed water samples from the Rotorua region which had been frozen (for preservation for chemical analyses) was shown to be an amorphous silica using XRF, XRD and microscopical analyses. The turbidity effect on DRP colourimetric analysis was not significant if the sample was left unshaken prior to measurement.